Electrical transmission or interconnection systems – Miscellaneous systems – For particular load device
Patent
1986-06-20
1989-02-07
Roskoski, Bernard
Electrical transmission or interconnection systems
Miscellaneous systems
For particular load device
307115, D13 32, 338159, 338199, 174 66, 174 55, 174 163, H01H 4700, H01C 1000
Patent
active
048033804
ABSTRACT:
A cover and support plate arrangement for a wall mounted device, such as a wall switch, display, dimmer, etc., for mounting to a wall box embedded in the wall and having overall surface dimensions greater than that of the wall box. The cover plate is juxtaposed over the front surface of the support plate and is spaced therefrom to provide an air gap between the cover plate and the support plate creating a chimney through which air currents may flow. The device includes an electric circuit having a heat generating device, such as a triac, which is thermally connected to the support plate and in series electrically with a controlled load. The cover plate casts a shadow along vertical sides of the support plate such that the vertical sides of the support plate are visible only when viewed at extreme angles with respect to an imaginary line perpendicular to the plane of the support plate or the wall in which the device is mounted. The cover plate appears to float from the wall while proper thermal dissipation is achieved through the chimney between the cover and support plate. Means are disclosed for constructing a low profile, conventionally sized family of wall mounted dimmer switches that meet Underwriters Laboratories operating temperature standards.
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D'Aleo Michael J.
Dowler David H.
Jacoby, Jr. Elliot G.
Luchaco David G.
Spira Joel S.
Ip Paul
Lutron Electronics Co. Inc.
Roskoski Bernard
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